The Unical X 24 C is a wall-mounted gas condensing boiler designed for efficient space heating and domestic hot water production.

It delivers a nominal useful power range from 5 to 25.2 kW with a modulation ratio of 1:5.2 and a seasonal space heating energy efficiency of 91%. The unit features a full premix burner, electronic ignition, and NOx emissions of 22 mg/kWh (Class 6), providing a mixed domestic hot water flow rate of 13.2 l/min. While designed for methane, an LPG conversion kit is included.

The boiler is constructed with a stainless steel heat exchanger, including a 12-plate secondary exchanger. It measures 700 x 420 x 345 mm and weighs 34 kg. Internal components include a 10-liter expansion vessel, a modulating circulator, and a 3 bar safety valve, all managed via a control panel with a display and potentiometer. Its IPX5D protection rating makes it suitable for outdoor installation.

This system is ideal for users requiring 2-zone management for high and low temperatures. It includes an automatic air vent, HWS function, and electronic antifreeze protection down to -15°C, and comes with a stainless steel flue kit.